The temperature coefficient of a reaction is - Vidyadip

MCQ

The temperature coefficient of a reaction is

A
Specific reaction rate at ${25\,^o}C$
B
Rate of the reaction at ${100\,^o}C$
✓
Ratio of the rate constants at temperatures ${35\,^o}C$ and ${25\,^o}C$
D
Ratio of the rate constants at two temperatures differing by ${1\,^o}C$

✓

Answer

Correct option: C.

Ratio of the rate constants at temperatures ${35\,^o}C$ and ${25\,^o}C$

c
(c)Temperature coefficient

$\frac{{{K_{{\rm{3}}{{\rm{5}}\,^{\rm{o}}}C}}}}{{{K_{{{25}\,^o}C}}}} = \frac{{{K_{308\,k}}}}{{{K_{298\,k}}}} = 2$ and $3 $ for most reactions.

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